2665245 has 32 divisors (see below), whose sum is σ = 4821120. Its totient is φ = 1245440.

The previous prime is 2665241. The next prime is 2665249. The reversal of 2665245 is 5425662.

2665245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2665241) and next prime (2665249).

It is not a de Polignac number, because 2665245 - 2² = 2665241 is a prime.

It is a Curzon number.

2665245 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2665241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4507 + ... + 5063.

It is an arithmetic number, because the mean of its divisors is an integer number (150660).

2^2665245 is an apocalyptic number.

It is an amenable number.

2665245 is a deficient number, since it is larger than the sum of its proper divisors (2155875).

2665245 is a wasteful number, since it uses less digits than its factorization.

2665245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605.

The product of its digits is 14400, while the sum is 30.

The square root of 2665245 is about 1632.5578090836. The cubic root of 2665245 is about 138.6476072742.

The spelling of 2665245 in words is "two million, six hundred sixty-five thousand, two hundred forty-five".